It's not possible to create a logic block for a robot resource. So I've created a logic block thats not connected to a resource. Is it possible to write the joint position for axis 1 of a particular robot resource into the logic block?
Yes you can.
If you are able to open your robot for modeling you can add an LB to it.
Inside your LB you can use the "Jump Joint" action to do this.
Then your model is in *.co format or it´s a super component (cojt but you cannot put in modeling).
In this case unfortunately, it´s not possible.